Broadband near-infrared emission of Cr3+ doped Zn7Sb2O12 phosphors for night vision imaging system sources

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL Journal of Molecular Structure Pub Date : 2024-11-24 DOI:10.1016/j.molstruc.2024.140827

Feifeng Huang, Yuqing Yan, Guanyu Zhu, Yi Zhang, Zhexuan Gao, Mingwei Fu, Ying Tian, Degang Deng, Shiqing Xu

{"title":"Broadband near-infrared emission of Cr3+ doped Zn7Sb2O12 phosphors for night vision imaging system sources","authors":"Feifeng Huang, Yuqing Yan, Guanyu Zhu, Yi Zhang, Zhexuan Gao, Mingwei Fu, Ying Tian, Degang Deng, Shiqing Xu","doi":"10.1016/j.molstruc.2024.140827","DOIUrl":null,"url":null,"abstract":"<div><div>Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) are highly promising for various applications, including food analysis, night vision, and biological detection. In this work, we report a Cr<sup>3+</sup>-doped Zn<sub>7</sub>Sb<sub>2</sub>O<sub>12</sub> phosphor, which was prepared through a high-temperature solid-phase method. Under excitation at 400 nm, the phosphor reveals an emission spectrum that extends from 700 to 1400 nm, peaking at 950 nm with a full width at half maximum (FWHM) of 179 nm. In addition, the internal quantum efficiency (IQE) of the Zn<sub>7</sub>Sb<sub>2</sub>O<sub>12</sub>: 0.01Cr<sup>3+</sup> phosphor is recorded at 33.13%. When encapsulated in pc-LEDs, the phosphor achieves a near-infrared (NIR) output power of 18.90 mW at 160 mA, along with a photoelectric conversion efficiency (PCE) of 15.45% at 20 mA. The developed pc-LED shows promise in non-destructive testing and night vision technologies.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1324 ","pages":"Article 140827"},"PeriodicalIF":4.0000,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Structure","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022286024033350","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) are highly promising for various applications, including food analysis, night vision, and biological detection. In this work, we report a Cr³⁺-doped Zn₇Sb₂O₁₂ phosphor, which was prepared through a high-temperature solid-phase method. Under excitation at 400 nm, the phosphor reveals an emission spectrum that extends from 700 to 1400 nm, peaking at 950 nm with a full width at half maximum (FWHM) of 179 nm. In addition, the internal quantum efficiency (IQE) of the Zn₇Sb₂O₁₂: 0.01Cr³⁺ phosphor is recorded at 33.13%. When encapsulated in pc-LEDs, the phosphor achieves a near-infrared (NIR) output power of 18.90 mW at 160 mA, along with a photoelectric conversion efficiency (PCE) of 15.45% at 20 mA. The developed pc-LED shows promise in non-destructive testing and night vision technologies.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

宽带近红外发射的Cr3+掺杂Zn7Sb2O12荧光粉用于夜视成像系统的光源

近红外磷光转换发光二极管（NIR pc- led）在食品分析、夜视和生物检测等领域有着广阔的应用前景。在这项工作中，我们报道了一种Cr3+掺杂的Zn7Sb2O12荧光粉，通过高温固相法制备。在400 nm激发下，荧光粉的发射光谱从700 nm延伸到1400 nm，在950 nm处达到峰值，半峰宽为179 nm。此外，Zn7Sb2O12: 0.01Cr3+荧光粉的内量子效率（IQE）为33.13%。当封装在pc- led中时，该荧光粉在160 mA时的近红外输出功率为18.90 mW，在20 mA时的光电转换效率（PCE）为15.45%。开发的pc-LED显示出在无损检测和夜视技术方面的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.